uptime

English

Etymology

From up (“(computing) functional, working”, adjective) +‎ time.

Noun

uptime (countable and uncountable, plural uptimes)

  1. (computing) The period of time a computer has functioned since last requiring a reboot.
  2. The amount of time, or the proportion of total time, during which some system or machinery is operable.
    • 2006, Fred K. Geitner and Heinz P. Bloch, chapter 1, in Maximizing Machinery Uptime, Elsevier, →ISBN, page 1:
      To achieve uptime optimization, the machinery specification and actual design must be right.

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